EP 0263402 A3 19881012 - SELECTIVELY COMPRESSED EXPANDED GRAPHITE GASKET AND METHOD OF MAKING SAME
Title (en)
SELECTIVELY COMPRESSED EXPANDED GRAPHITE GASKET AND METHOD OF MAKING SAME
Publication
Application
Priority
US 91259386 A 19860929
Abstract (en)
[origin: US4705278A] A laminated expanded graphite gasket, such as an automotive head gasket, comprising a core and compressed expanded graphite facings and defining clear-through openings. A thin metallic layer is positioned on the graphite facing over less than 75% of the area of the facing for at least partial embeddment therein to enhance sealing stress in the covered portions, to improve impingment resistance of the gasket, and to improve other properties of expanded graphite gaskets.
IPC 1-7
IPC 8 full level
F02F 11/00 (2006.01); F16J 15/12 (2006.01)
CPC (source: EP US)
F16J 15/123 (2013.01 - EP US); F02F 2001/104 (2013.01 - EP US); Y10S 277/922 (2013.01 - EP US)
Citation (search report)
- [A] DE 3403875 A1 19850808 - KLINGER AG [CH]
- [A] US 2170363 A 19390822 - BALFE GEORGE T
- [A] FR 2528911 A1 19831223 - SIGRI ELEKTROGRAPHIT GMBH [DE]
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
US 4705278 A 19871110; DE 3771635 D1 19910829; EP 0263402 A2 19880413; EP 0263402 A3 19881012; EP 0263402 B1 19910724; ES 2023389 B3 19920116; JP H0478869 B2 19921214; JP S6392873 A 19880423
DOCDB simple family (application)
US 91259386 A 19860929; DE 3771635 T 19870928; EP 87114170 A 19870928; ES 87114170 T 19870928; JP 24104687 A 19870928